This is another of the Star Trek red alert circuit that you can find on this site. We took this version from an English publication from the 80s.
This circuit obtains phase-inverted signals from a single signal. The circuit uses two LM741...
This circuit was found in a 1963 magazine. The magazine no longer exists, but the circuit can be...
a This circuit was obtained from a 1978 Practical Wireless. It causes a low-power 1.5V lamp to...